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No. 670,733. n Patented nar. 26,(l90l.

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(Application led Feb. vI5, 1900.)

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(Application led Feb. 5, 1900.)

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UNITED STATES PATENT OFFICE.

WALLACE JOHN REYNOLDS, OF LONDON, ENGLAND, ASSIGNOR TO THE EVOY PATENT COMPASS (PARENT) COMPANY, LIMITED, OF SAME PLACE.

SHIPS COMPASS.

SPECIFICATION forming; part of Letters Patent N o. 670,733, dated March 26, 1901.

Application iiled February 5, 1900. Serial No. 4,132. (No model.)

To LtZZ whom it may concern.-

Be it known that I, WALLACE JOHN REY- NOLDS,a subject ofthe Queen of Great Britain, residing at l Aldgate avenue, city of London, England, have invented certain new and useful Improvements in Ships Compasses, of which the following is a specification.

This invention relates to certain improvementsconnected with ships` compasses, especially for what are known as overhead compasses 1. e., those that can be raised high above the hull of a vessel for self-adjustment of the card magnetically and then when steady be ixed, so that the deck-binnacle and cabin Compasses can be adj usted therefromthe object being that captains and master mariners can adj ust the ships compasses without the necessity of employing outside aid or of being detained for the usual adjustment by special scientists, as at present.

My invention will be understood from the following description, aided'b'y the annexed drawings, in which- Figure l is a part-sectional elevation of such a compass in position near the upper end of its travel and near the j amper-stay g Fig. 2, a part-sectional end view, and Fig. 3

an end view, of the card unlocking appliances; Fig. 4, an end View of the link; Fig. 5,a plan of the guide-leg with easy-release end for uushipping from strained rope; Figa 6, a diagram of the apparatus.

A is a compass-card balanced on a pin B, projecting from a bridge C, Within a weighted bowl D of the usual construction. This bowl D is suspended on axles E E for sway motion in two directions only and not on double gimballs, like ordinary compasses. The axles E are of box-like formation, held between two uprights F F, constituting the frame, the upper and lower ends having extensions G, with guide-eyes to slide up and down strained ropes H, tted to the deck of a vessel and to a crossbar I, respectively, and from which the overhead compass is hung by rope J or as desired. From a cross-bar I depends a rod I', which carries, in addition to a guide-pulley K for the hauling-up rope J, a couple of spring-legs L L, (see Figs. 2 and 3,) with abutment-shoulders M M, the legs L L having a slight yielding action when pressed against.

' to the deck of a vessel.

To the lower part of the frame F a couple of arms N N are pivoted. These by links N N make the connection with a travelerthimble or sleeve P, which moves upon a tubular rod Q, projecting from the frame F, through and to which one end of the hauling-up rope .I is ailxed. Each of the arms the pins S S being within the bowl D and carrying dished disks T T, centrally arranged with the position of the compass-card. The

pins S S are scored or grooved at the parts within the box-like axles E E and are furnished with rubber or other diaphragme U U, the edges of which are nipped in the joints of the box-like axles E E, said diaphragme serving to prevent escape of liquid from the pivoted box-like axles E.

The cross-bar I is weighted to produce steadiness and is suspended by links W W from an upper cross-bar X, hooked or otherwise attached to the jumper-stay Y. The upper and lower cross-bars X. I are in asense further connected by quadrant-ended guides Z Z, held at their respective distances apart by a weighted rod Z. These connectionsproduce steadiness and absorb all tremulousV motion which might be imparted from the vibrations or oscillations from the ship to which the compass apparatus is fitted.

I have not shown the apparatus as fitted to a ship; but it can readily be gathered that when suspended, as indicated, from the jumper-stay Y the two strained ropes H H are secured by tightening tackle or parbuckle The hauling-rope J has one end attached to the upper part of frame F and the other end to the lower part of same frame, the slack being about level with the deck. It can easily be conceived how the lip-and-down travel of the overhead compass can be controlled.

The compass-card A during the hauling-up and hauling-down operations is fixed by the pressure of the two springs VV acting upon IOO the spurs R R and forcing the arms N N inward, the arms R R pushing the pins S inward; but so soon as the apparatus is raised high enough the sleeve P will first ycome in contact with the end I2 of the rod I', the onward motion depressing the sleeve P and opening out the links N' N', and also the arms N N, for the spurs R R by action on the nuts Sv to withdraw the pins S, and thus free the compass-card, and by this time the projections G' of the frame F have entered between the shoulders M of the springs L for holding the appliances in their elevated position and the compasscard in a released condition. The compass-card is now free to adjust itself magnetically out of the influence of the magnetic action of the ship, and on a lowering of the appliances the card immediately becomes again fixed by action of the springs V on the spurs R,'so that the arms NNagain press in the pins S S, and with them the dished disks T T, to hold the compass-card in its self-adjusted position for enabling the reading to be taken vwhen the compass and its appu rtenances are lowered onto the deck or other part of a ship.

d is a pin projecting inside the compassbowl for engaging a notch or recess in the disk T, which disk is marked with the lubberline, so that the disk being prevented revolving a proper reading can be taken.

What I claim, and desire to secure by Letters Patent, is-` 1. In a ships compass, the combination with the compass-card A and bowl D, of the disks T in the bowl for supporting the card, pins S connected to said disks and projecting oppositely through the walls of the bowl and having heads at their outer ends, arms N pivoted to the framework having spurs R engaged by i f I @70h33 said heads, springs V secured to the framework and bearing against said spurs, a rod on the framework, a traveler slidable on said rod, and links connecting the traveler with said arms.

2. In a ships compass, the suspension appliance consisting of the juin per-stay Y having links connected thereto, the rod X sustained by said links, a second series of links carried by said rod, the weighted rod I supported by said second links, said weighted rod having quadrant-shaped links Z attached thereto, said quadrants engaging the rod X, a weighted bar Z' carried by the quadrantlinks, a bar I depending from bar I, and springs L on said bar I' having abutmentshoulders M, as set forth.

3. In aships compass, the combination with the compass-card A, of the bowl B, disks T in the bowl for supporting the card, pins S connected to the disks and projecting oppositely through the Walls of the bowl and having heads at their outer ends, arms N pivoted to the framework and provided with spurs for engaging said heads, springs V connected to the framework and bearing against said spurs, a rod on the framework, a traveler slidable on said rod, links pivoted respectively to said traveler and arms, projections on they framework, bar I having depending rod I', and spring-arms secured to said depending rod having shoulders to receive said projections.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WALLACE JOHN REYNOLDS. Witnesses:

RICHARD CORE GARDNER, WM. O. BRowN. 

